Linedefs Mode: fixed a problem where after splitting a linedef the insert vertex preview would not work correctly

Vertices Mode: fixed a problem where after inserting a vertext the insert vertex preview would not work correctly

Source/Plugins/BuilderModes/ClassicModes/LinedefsMode.cs

@@ -1852,6 +1852,9 @@ namespace CodeImp.DoomBuilder.BuilderModes
 					//BuilderPlug.Me.AdjustSplitCoordinates(ld, sld);
 				}
 
+				// Create the blockmap
+				CreateBlockmap();
+
 				// Update cache values
 				General.Map.IsChanged = true;
 				General.Map.Map.Update();

Source/Plugins/BuilderModes/ClassicModes/VerticesMode.cs

@@ -382,6 +382,9 @@ namespace CodeImp.DoomBuilder.BuilderModes
 					}
 					//BuilderPlug.Me.AdjustSplitCoordinates(l, sld);
 
+					// Create the blockmap
+					CreateBlockmap();
+
 					// Update
 					General.Map.Map.Update();
 
@@ -976,6 +979,9 @@ namespace CodeImp.DoomBuilder.BuilderModes
 					General.Interface.DisplayStatus(StatusType.Action, "Inserted a vertex.");
 				}
 
+				// Create the blockmap
+				CreateBlockmap();
+
 				// Update
 				General.Map.Map.Update();